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Old 28th September 2005, 07:59 PM
mercdv Offline
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Join Date: Aug 2005
Posts: 2
annoying high-pitched continuous sound

I've had Fedora Core 4 running on my IBM T43 for a few months now. I decided to go ahead and setup the power management. I setup my cpuspeed.conf, a lid closed event, and edited my grub.conf. After doing this, my machine emits a faint, high-pitched beeping sound that's gets even louder while on battery. It also gets louder if I turn up the cpu frequency. Anyone got any ideas? I tried searching and couldn't find anything with the terms I was using.

My cpuspeed.conf looks like this:


# uncomment this and set to the name of your CPUFreq module

# Let background (nice) processes speed up the cpu

# Add your favorite options here
#OPTS="$OPTS -s 0 -i 10 -r"

# uncomment and modify this to check the state of the AC adapter
OPTS="$OPTS -a /proc/acpi/ac_adapter/*/state"

# uncomment and modify this to check the system temperature
OPTS="$OPTS -t /proc/acpi/thermal_zone/*/temperature 75"

Last edited by mercdv; 28th September 2005 at 09:21 PM. Reason: left out something
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Old 29th September 2005, 05:29 PM
mercdv Offline
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Join Date: Aug 2005
Posts: 2
Ok, it might not be coming from the speakers. It's hard to tell since the speakers are right beside a vent port. It could even be coming from the vent port underneath the touchpad which means it could be the wireless card. Any ideas?
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Old 29th September 2005, 05:45 PM
multescugeorge@ Offline
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Join Date: Jun 2005
Posts: 723
use alsamixer to turn down all the volumes. See if the sound continues.
A friend had similar problem, he had a nasty buzzing sound, but only when the CPU was working more than 1%. Fixed by kernel + system update .
Don't know in your case.
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annoying, continuous, high, pitched, sound

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